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When searching multiple databases, the same study often appears more than once. EviSyn uses a multi-layered approach that catches 95%+ of duplicates — including near-matches that traditional tools miss.

Running Deduplication

Navigate to Deduplication from your project dashboard. Deduplication page with duplicate groups You have two scan options:

Scan for Duplicates

Fast scan using DOI matching, exact title matching, and fuzzy title matching (85%+ similarity). Takes seconds.

Run Semantic Analysis

Deep scan using AI-powered semantic similarity. Catches papers that describe the same study with completely different wording. Takes longer but finds more duplicates.

The 4 Detection Layers

Reviewing Duplicate Groups

Each group of potential duplicates shows:
  • Match type badge (e.g., “Fuzzy Title Match”)
  • Similarity score for each paper (e.g., 100%, 88%, 85%)
  • Full metadata: title, authors, journal, DOI

Resolution Options

For each group, you can:
Always check the DOIs and author lists before resolving. Fuzzy matches sometimes catch related but distinct papers (e.g., study protocol vs. results paper).

What’s Next?

Once all duplicate groups are resolved, proceed to AI Screening to screen your papers.